Well, apparently, kopete-otr is included in kopete-4.1 but for some reason it does not get installed as a plugin in sabayon linux with the recently released kde 4.2.  I set out to try to get this working.  I even installed libotr from sabayon respositories, which didnt work, and then from gentoo portage, which also didnt work.

I even tried to compile kopete-otr from source, which is done similar to this:

# bunzip2 kopete-otr-0.8.tar.bz2

# tar xzf kopete-otr-0.8.tar

# cd kopete-otr-0.8

# mkdir build

# cd build

# equo update

# equo install cmake

# cmake ..

This part finishes correctly.

Next, I attempt to build:

# VERBOSE=1 make

and some time later it fails with this error message:

 Linking CXX shared library lib/libkopete_otr_shared.so
/usr/bin/cmake -E cmake_link_script CMakeFiles/kopete_otr_shared.dir/link.txt --verbose=1
/usr/bin/c++  -fPIC  -Wnon-virtual-dtor -Wno-long-long -ansi -Wundef -Wcast-align -Wchar-subscripts -Wall -W -Wpointer-arith -Wformat-security -fno-exceptions -fno-check-new -fno-common -Woverloaded-virtual -fno-threadsafe-statics -fvisibility=hidden -fvisibility-inlines-hidden -O2 -g -Wl,--enable-new-dtags -Wl,--fatal-warnings -Wl,--no-undefined -lc  -shared -Wl,-soname,libkopete_otr_shared.so.1 -o lib/libkopete_otr_shared.so.1.0.0 CMakeFiles/kopete_otr_shared.dir/kopete_otr_shared_automoc.o CMakeFiles/kopete_otr_shared.dir/otrlchatinterface.o CMakeFiles/kopete_otr_shared.dir/otrlconfinterface.o CMakeFiles/kopete_otr_shared.dir/smppopup.o CMakeFiles/kopete_otr_shared.dir/verifydialog.o CMakeFiles/kopete_otr_shared.dir/privkeypopup.o -L/usr/kde/4.2/lib64 -L/root/kopete-otr-0.8/build -L/usr/lib64/qt4 -lkopete -lkio -lkdeui /usr/kde/4.2/lib64/libkdecore.so.5.2.0 -lotr /usr/lib64/qt4/libQtDBus.so /usr/lib64/qt4/libQtCore.so -lpthread -Wl,-rpath,/usr/kde/4.2/lib64:/root/kopete-otr-0.8/build:/usr/lib64/qt4
CMakeFiles/kopete_otr_shared.dir/otrlchatinterface.o: In function `create_privkey':
/root/kopete-otr-0.8/otrlchatinterface.cpp:113: undefined reference to `QWidget::close()'
CMakeFiles/kopete_otr_shared.dir/otrlconfinterface.o: In function `OtrlConfInterface::generateNewPrivKey(QString const&, QString const&)':
/root/kopete-otr-0.8/otrlconfinterface.cpp:93: undefined reference to `QWidget::close()'
CMakeFiles/kopete_otr_shared.dir/smppopup.o: In function `SMPPopup::respondSMP()':
/root/kopete-otr-0.8/smppopup.cpp:71: undefined reference to `QLineEdit::text() const'